助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   垂直 在 地球物理学 分类中 的翻译结果: 查询用时:0.127秒
图标索引 在分类学科中查询
所有学科
地球物理学
气象学
海洋学
物理学
力学
生物学
自然地理学和测绘学
环境科学与资源利用
机械工业
更多类别查询

图标索引 历史查询
 

垂直
    很抱歉,暂未找到该词条在当前类别下的译词。您可以查看在所有学科下的译词。
相关语句
  “垂直”译为未确定词的双语例句
    The Influence of Shearing Neutral Winds on the Two Stream Instability in the Equatorial Electrojet
    垂直电流对赤道电射流中双流不稳定性的影响
短句来源
    Forward Modeling VSP by Finite Element Method
    垂直地震剖面的有限元正演模拟
短句来源
    A POSSIBLE MECHANISM OF THE DIFFERENCE OF THE RELATIONSHIP BETWEEN GRAVITY CHANGES AND CRUSTAL UPHEAVAL IN DIFFERENT AREAS
    不同区域地震前重力变化与垂直形变关系的差异性及其可能机制
短句来源
    DISCUSSION ON THE IMPEDANCE EQUIVALENT RESISTIVITY IN ELECTRO-MAGNETIC SOUNDING AND ITS CALCULATION
    电磁测深中阻抗等效电阻率的讨论及其算法——水平多层大地上垂直磁偶极子频率电磁测深
短句来源
    A General Program for Depth Averaged Flow Ⅰ Model Structure
    一个垂直平均水流运动的边界通用程式Ⅰ.程式结构
短句来源
更多       
查询“垂直”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
没有找到相关例句


According to the basic equations derived under the two assumptions by Harold Lauffer—(1) the energy head of every point of a vertical section remains constant,(2) the flow lines are concentric circular arcs,this paper qives a comprehensive deduction of curvature effect in the characteristics of free overflow of round-crested spillway.118 runs of experiments of three round-crested spillway models of different size have been conducted by the author.The experimental results check the derived equations basically.Some...

According to the basic equations derived under the two assumptions by Harold Lauffer—(1) the energy head of every point of a vertical section remains constant,(2) the flow lines are concentric circular arcs,this paper qives a comprehensive deduction of curvature effect in the characteristics of free overflow of round-crested spillway.118 runs of experiments of three round-crested spillway models of different size have been conducted by the author.The experimental results check the derived equations basically.Some empirical equations have been prepared to facilitate the application of experimental data.The discharge coefficients of free overflow of 27 different profiles of 16 practical spillways obtained by model tests have also been collected to verify the curvature effect equatiohs given by this paper Their practical agreement is also acquired.

本文根据劳弗尔(H.Lauffer)氏在两项假定[(1)垂直测线上各点所含能量为常数,(2)流线呈同心圆弧]下所导得的基本公式,作了详细的补充引伸,得出圆顶壩自由溢流时各项水力特性中的曲率影响计算公式。作者曾进行了大、中、小三个圆顶壩模型的试验共118组,试验成果基本上和导得的计算公式相合致。文中并根据试验资料制定了一些经验公式,应用时可更简便。此外,也曾搜集了16个实用溢流壩包括27种断面曲线形式的流量系数模型试验资料,来验证流量系数所受的曲率影响,基本上也相符合。

The effect of large-scale geomagnetic fluctuation on the distribution function of charged particles trapped in the outer radiation belt is investigated with the following main results. (1)During the main phase, the position of maximum electron intensity shifts outwards with decreasing peak intensity, while in the sudden commencement the position of maximum electron intensity moves inwards with increasing peak intensity.This is supported precisely by the measurements of Explorer 6 as well as by the observations...

The effect of large-scale geomagnetic fluctuation on the distribution function of charged particles trapped in the outer radiation belt is investigated with the following main results. (1)During the main phase, the position of maximum electron intensity shifts outwards with decreasing peak intensity, while in the sudden commencement the position of maximum electron intensity moves inwards with increasing peak intensity.This is supported precisely by the measurements of Explorer 6 as well as by the observations of two Soviet Lunar rockets 1 and 2. (2)The variation of the distribution of kinetic energy is likewise very considerable.The peak shifts to the range of smaller energy during the main phase and to the range of higher energy during the initial phase. (3)The pitch angles decrease in the main phase but increase during the initial phase. (4)The altitudes of the mirror point decrease in the initial phase and increase in the main phase. With these findings we come to the following conclusion. Because of the expansion of the tube of force as well as the diminishing of the kinetic energy, the density and hence the intensity of the charged particle on the magnetic equator is reduced during the main phase. While in the initial phase, owing to the descent of the mirror point,a part of the charged particle may precipitate into the lower atmosphere and excite the aurorae, but because of the compression of the tube of force and increase of the particle's kinetic energy, the intensity of the charged particle on the magnetic equator still shows up clearly the tendency of increasing.

本文根据磁矩守恆的条件,利用刘維定理(Liouville's theorem),討論了磁暴期間在赤道平面外輻射带內,带电粒子的空間分布及能量分布的变化。結果表明:当主相时,粒子密度及通量的峯值变小而且位置向外移动。此結果与探測事实相符。能譜分布也有显著的变化,不論垂直能量或是平行能量,当主相时能量分布的峯值向低能量的方向偏移;急始时向高能量的方向偏移。对投擲角及鏡点高度作了計算,发現当急始时投擲角变大,而鏡点高度下降;主相吋投擲角变小,镜点高度上升。由此可以訊为,在主相期間緩慢的磁場下降,不能使外輻射带內粒子侵入上层大气。相反,在急始时則可能有一部分粒子会侵入上层大气。根据所得結果,基本上可以解释目前的观測現象。

Chisnell- no's method is applied to studying the propagation of a perpendicular hydromagnetic shock wave in the inhomogeneous magnetic field. A new shock parameter, the characteristic velocity of shock wave representing' the geometric mean of the shock velocities in both sides of the front, has been introduced. The propagation equation thus obtained is greatly simplified. The equation is integrated by numerical method in the case of "strong magnetic medium", where the Alfvén velocity is much greater than the...

Chisnell- no's method is applied to studying the propagation of a perpendicular hydromagnetic shock wave in the inhomogeneous magnetic field. A new shock parameter, the characteristic velocity of shock wave representing' the geometric mean of the shock velocities in both sides of the front, has been introduced. The propagation equation thus obtained is greatly simplified. The equation is integrated by numerical method in the case of "strong magnetic medium", where the Alfvén velocity is much greater than the sound velocity. Three types of particle density distribution are considered: (1) the Alfvén velocity is constant, (2) the density is uniform and (3) the ratio of the density to the field intensity remains constant. It is shown that when a shock wave propagates from a weak field into a strong one, its strength measured by the jump ratio of field intensity always decreases. For medium with a constant Alfvén velocity the shock wave decays most slowly; for a medium of uniform density the shock wave attenuates most quickly; while for the constant density-field ratio medium the attenuation rate appears to be intermediate. In the weak shock limit, the amplitude of wave is inversely proportional to the square root of the Alfvén velocity. These results are discussed in relation to the magnetic shock propagating in the earth's magnetosphere on the assumption that the whole space is filled with wholly ionized hydrogen plasma whose density is proportional to the field intensity, as confirmed by whistler observation from 2 to 5 earth's radii distance. In this case, it is shown that a shock wave of initial velocity 10~8cm/sec at 10 earth's radii distance will excite a 60γ field change in the earth's surface, comparable to the order of magnetitude of the sudden commencement of a strong storm in the lower latitudes.

本文应用Chisnell- no方法,求解了在理想介貭中,垂直磁流体冲激波在非均勻磁場中的传播問題。这种方法,把非均勻介貭分解成无限小的弱間断面,根据气体动力学中波与間断面相互作用的原理,算出激波通过弱間断面时的强度变化,然后用积分求得激波通过整个非均勻区时的强度变化。作者引入了激波的特征速度(它是激波在波前后介貭中传播速度的几何平均值)作为輔助参量,得到形式上比較簡单的激波传播方程。然后考虑了磁压力远大于气体压力的强磁介貭中的激波传播問題,并进行了数值积分。采用的介貭密度模型有三种:(1)阿尔芬波速为常数;(2)密度不变;(3)密度与磁場强度成正比。計算結果表明:当激波由弱磁場向强磁場传播时,激波的强度逐漸变弱。其中,在阿尔芬波速为常数的介貭中,激波强度的衰减最为緩慢;在密度不变的介貭中,激波强度的衰減最为迅速;而在密度与磁場成正比的介貭中,激波强度的衰減則介乎上述两种密度分布之間。作者联系磁流体冲激波在地球外层空間的传播問題进行了討論,密度的模型采取大气啃昔的观測結果(卽上述第三种密度分布),并进行了适当的外推,估計了在十个地球半径处的磁流体冲激波传到地面时的强度,求出了激波在地面引起的磁場变...

本文应用Chisnell- no方法,求解了在理想介貭中,垂直磁流体冲激波在非均勻磁場中的传播問題。这种方法,把非均勻介貭分解成无限小的弱間断面,根据气体动力学中波与間断面相互作用的原理,算出激波通过弱間断面时的强度变化,然后用积分求得激波通过整个非均勻区时的强度变化。作者引入了激波的特征速度(它是激波在波前后介貭中传播速度的几何平均值)作为輔助参量,得到形式上比較簡单的激波传播方程。然后考虑了磁压力远大于气体压力的强磁介貭中的激波传播問題,并进行了数值积分。采用的介貭密度模型有三种:(1)阿尔芬波速为常数;(2)密度不变;(3)密度与磁場强度成正比。計算結果表明:当激波由弱磁場向强磁場传播时,激波的强度逐漸变弱。其中,在阿尔芬波速为常数的介貭中,激波强度的衰减最为緩慢;在密度不变的介貭中,激波强度的衰減最为迅速;而在密度与磁場成正比的介貭中,激波强度的衰減則介乎上述两种密度分布之間。作者联系磁流体冲激波在地球外层空間的传播問題进行了討論,密度的模型采取大气啃昔的观測結果(卽上述第三种密度分布),并进行了适当的外推,估計了在十个地球半径处的磁流体冲激波传到地面时的强度,求出了激波在地面引起的磁場变化与激波初始速度之間的关系。根据上述簡化模型,計算結果表明,在十个地球半径处初始速度为10~8厘米/秒的激波,传到地面引起的磁場变化大約为60伽(亻馬),这个数值的量級恰好与中低緯度强磁暴的急始变幅相符。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关垂直的内容
在知识搜索中查有关垂直的内容
在数字搜索中查有关垂直的内容
在概念知识元中查有关垂直的内容
在学术趋势中查有关垂直的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社